Examples with IStrategoTerm org.spoofax.interpreter.terms.IStrategoTerm used on opensource projects

Example 21 with IStrategoTerm

use of org.spoofax.interpreter.terms.IStrategoTerm in project spoofax by metaborg.

the class AbstractConstraintAnalyzer method getFlowSpecTransferFunctions.

protected Optional<TFFileInfo> getFlowSpecTransferFunctions(ILanguageComponent component) {
    TFFileInfo transferFunctions = flowSpecTransferFunctionCache.get(component);
    if (transferFunctions != null) {
        return Optional.of(transferFunctions);
    }
    FileObject tfs = resourceService.resolve(component.location(), TRANSFER_FUNCTIONS_FILE);
    try {
        IStrategoTerm sTerm = termFactory.parseFromString(IOUtils.toString(tfs.getContent().getInputStream(), StandardCharsets.UTF_8));
        ITerm term = strategoTerms.fromStratego(sTerm);
        transferFunctions = TFFileInfo.match().match(term, PersistentUnifier.Immutable.of()).orElseThrow(() -> new ParseException("Parse error on reading the transfer function file"));
    } catch (ParseError | ParseException | IOException e) {
        logger.error("Could not read transfer functions file for {}", component);
        return Optional.empty();
    }
    logger.debug("Caching flowspec transfer functions for language {}", component);
    flowSpecTransferFunctionCache.put(component, transferFunctions);
    return Optional.of(transferFunctions);
}

Example 22 with IStrategoTerm

use of org.spoofax.interpreter.terms.IStrategoTerm in project spoofax by metaborg.

the class ConstraintMultiFileAnalyzer method analyzeSemiIncremental.

private ISpoofaxAnalyzeResults analyzeSemiIncremental(Map<String, ISpoofaxParseUnit> changed, java.util.Set<String> removed, IMultiFileScopeGraphContext context, HybridInterpreter runtime, String strategy, IProgress progress, ICancel cancel) throws AnalysisException {
    final NaBL2DebugConfig debugConfig = context.config().debug();
    final Timer totalTimer = new Timer(true);
    final AggregateTimer collectionTimer = new AggregateTimer();
    final AggregateTimer solverTimer = new AggregateTimer();
    final AggregateTimer finalizeTimer = new AggregateTimer();
    final String globalSource = "";
    final Function1<String, String> globalFresh = base -> context.unit(globalSource).fresh().fresh(base);
    for (String input : removed) {
        context.removeUnit(input);
    }
    final int n = changed.size();
    final int w = context.units().size() / 2;
    progress.setWorkRemaining(n + w + 1);
    if (debugConfig.analysis() || debugConfig.files()) {
        logger.info("Analyzing {} files in {}.", n, context.location());
    }
    final Collection<ISpoofaxAnalyzeUnit> results = Lists.newArrayList();
    final Collection<ISpoofaxAnalyzeUnitUpdate> updateResults = Lists.newArrayList();
    try {
        // initial
        InitialResult initialResult;
        final Optional<ITerm> customInitial;
        {
            if (debugConfig.collection()) {
                logger.info("Collecting initial constraints.");
            }
            if (context.initialResult().isPresent()) {
                initialResult = context.initialResult().get();
                customInitial = context.initialResult().flatMap(r -> r.getCustomResult());
            } else {
                collectionTimer.start();
                try {
                    final ITerm globalAST = Actions.sourceTerm(globalSource, B.EMPTY_TUPLE);
                    ITerm initialResultTerm = doAction(strategy, Actions.analyzeInitial(globalSource, globalAST), context, runtime).orElseThrow(() -> new AnalysisException(context, "No initial result."));
                    initialResult = InitialResult.matcher().match(initialResultTerm).orElseThrow(() -> new AnalysisException(context, "Invalid initial results."));
                    customInitial = doCustomAction(strategy, Actions.customInitial(globalSource, globalAST), context, runtime);
                    initialResult = initialResult.withCustomResult(customInitial);
                    context.setInitialResult(initialResult);
                } finally {
                    collectionTimer.stop();
                }
            }
            if (debugConfig.collection()) {
                logger.info("Initial constraints collected.");
            }
        }
        // global parameters, that form the interface for a single unit
        final java.util.Set<ITermVar> intfVars = Sets.newHashSet();
        {
            initialResult.getArgs().getParams().stream().forEach(param -> intfVars.addAll(param.getVars()));
            initialResult.getArgs().getType().ifPresent(type -> intfVars.addAll(type.getVars()));
        }
        final SemiIncrementalMultiFileSolver solver = new SemiIncrementalMultiFileSolver(context.config().debug(), callExternal(runtime));
        // global
        ISolution initialSolution;
        {
            if (context.initialSolution().isPresent()) {
                initialSolution = context.initialSolution().get();
            } else {
                try {
                    solverTimer.start();
                    final IProgress subprogress = progress.subProgress(1);
                    GraphSolution preSolution = solver.solveGraph(ImmutableBaseSolution.of(initialResult.getConfig(), initialResult.getConstraints(), PersistentUnifier.Immutable.of()), globalFresh, cancel, subprogress);
                    preSolution = solver.reportUnsolvedGraphConstraints(preSolution);
                    initialSolution = solver.solveIntra(preSolution, intfVars, null, globalFresh, cancel, subprogress);
                    if (debugConfig.resolution()) {
                        logger.info("Reduced file constraints to {}.", initialSolution.constraints().size());
                    }
                } catch (SolverException e) {
                    throw new AnalysisException(context, e);
                } finally {
                    solverTimer.stop();
                }
                context.setInitialSolution(initialSolution);
            }
        }
        final java.util.Set<Scope> intfScopes = Sets.newHashSet();
        {
            initialResult.getArgs().getParams().stream().forEach(param -> Scope.matcher().match(param, initialSolution.unifier()).ifPresent(intfScopes::add));
        }
        // units
        final Map<String, IStrategoTerm> astsByFile = Maps.newHashMap();
        final Map<String, IMessage> failures = Maps.newHashMap();
        final Multimap<String, IMessage> ambiguitiesByFile = HashMultimap.create();
        for (Map.Entry<String, ISpoofaxParseUnit> input : changed.entrySet()) {
            final String source = input.getKey();
            final ISpoofaxParseUnit parseUnit = input.getValue();
            final ITerm ast = strategoTerms.fromStratego(parseUnit.ast());
            if (debugConfig.files()) {
                logger.info("Analyzing {}.", source);
            }
            final IMultiFileScopeGraphUnit unit = context.unit(source);
            unit.clear();
            try {
                UnitResult unitResult;
                final Optional<ITerm> customUnit;
                {
                    if (debugConfig.collection()) {
                        logger.info("Collecting constraints of {}.", source);
                    }
                    try {
                        collectionTimer.start();
                        final ITerm unitResultTerm = doAction(strategy, Actions.analyzeUnit(source, ast, initialResult.getArgs()), context, runtime).orElseThrow(() -> new AnalysisException(context, "No unit result."));
                        unitResult = UnitResult.matcher().match(unitResultTerm).orElseThrow(() -> new MetaborgException("Invalid unit results."));
                        final ITerm desugaredAST = unitResult.getAST();
                        customUnit = doCustomAction(strategy, Actions.customUnit(source, desugaredAST, customInitial.orElse(B.EMPTY_TUPLE)), context, runtime);
                        unitResult = unitResult.withCustomResult(customUnit);
                        final IStrategoTerm analyzedAST = strategoTerms.toStratego(desugaredAST);
                        astsByFile.put(source, analyzedAST);
                        ambiguitiesByFile.putAll(source, analysisCommon.ambiguityMessages(parseUnit.source(), parseUnit.ast()));
                        unit.setUnitResult(unitResult);
                    } finally {
                        collectionTimer.stop();
                    }
                    if (debugConfig.collection()) {
                        logger.info("Collected {} constraints of {}.", unitResult.getConstraints().size(), source);
                    }
                }
                {
                    final ISolution unitSolution;
                    if (debugConfig.resolution()) {
                        logger.info("Reducing {} constraints of {}.", unitResult.getConstraints().size(), source);
                    }
                    try {
                        solverTimer.start();
                        final Function1<String, String> fresh = base -> context.unit(source).fresh().fresh(base);
                        final IProgress subprogress = progress.subProgress(1);
                        GraphSolution preSolution = solver.solveGraph(ImmutableBaseSolution.of(initialResult.getConfig(), unitResult.getConstraints(), initialSolution.unifier()), fresh, cancel, subprogress);
                        preSolution = solver.reportUnsolvedGraphConstraints(preSolution);
                        unitSolution = solver.solveIntra(preSolution, intfVars, intfScopes, fresh, cancel, subprogress);
                        if (debugConfig.resolution()) {
                            logger.info("Reduced file constraints to {}.", unitSolution.constraints().size());
                        }
                    } catch (SolverException e) {
                        throw new AnalysisException(context, e);
                    } finally {
                        solverTimer.stop();
                    }
                    unit.setPartialSolution(unitSolution);
                    if (debugConfig.files() || debugConfig.resolution()) {
                        logger.info("Analyzed {}: {} errors, {} warnings, {} notes, {} unsolved constraints.", source, unitSolution.messages().getErrors().size(), unitSolution.messages().getWarnings().size(), unitSolution.messages().getNotes().size(), unitSolution.constraints().size());
                    }
                }
            } catch (MetaborgException e) {
                logger.warn("Analysis of " + source + " failed.", e);
                failures.put(source, MessageFactory.newAnalysisErrorAtTop(parseUnit.source(), "File analysis failed.", e));
            }
        }
        // solve
        final ISolution solution;
        final List<Optional<ITerm>> customUnits = Lists.newArrayList();
        {
            final List<ISolution> partialSolutions = Lists.newArrayList();
            for (IMultiFileScopeGraphUnit unit : context.units()) {
                unit.partialSolution().ifPresent(partialSolutions::add);
                unit.unitResult().map(UnitResult::getCustomResult).ifPresent(customUnits::add);
            }
            if (debugConfig.resolution()) {
                logger.info("Solving {} partial solutions.", partialSolutions.size());
            }
            ISolution sol;
            try {
                solverTimer.start();
                Function1<String, String> fresh = base -> context.unit(globalSource).fresh().fresh(base);
                IMessageInfo message = ImmutableMessageInfo.of(MessageKind.ERROR, MessageContent.of(), Actions.sourceTerm(globalSource));
                sol = solver.solveInter(initialSolution, partialSolutions, message, fresh, cancel, progress.subProgress(w));
                sol = solver.reportUnsolvedConstraints(sol);
            } catch (SolverException e) {
                throw new AnalysisException(context, e);
            } finally {
                solverTimer.stop();
            }
            if (!sol.flowSpecSolution().controlFlowGraph().isEmpty()) {
                logger.debug("CFG is not empty: calling FlowSpec dataflow solver");
                sol = new FixedPoint().entryPoint(sol, getFlowSpecTransferFunctions(context.language()));
            }
            solution = sol;
            context.setSolution(solution);
            if (debugConfig.resolution()) {
                logger.info("Project constraints solved.");
            }
        }
        // final
        FinalResult finalResult;
        final Optional<ITerm> customFinal;
        final Optional<CustomSolution> customSolution;
        {
            if (debugConfig.analysis()) {
                logger.info("Finalizing project analysis.");
            }
            finalizeTimer.start();
            try {
                ITerm finalResultTerm = doAction(strategy, Actions.analyzeFinal(globalSource), context, runtime).orElseThrow(() -> new AnalysisException(context, "No final result."));
                finalResult = FinalResult.matcher().match(finalResultTerm, solution.unifier()).orElseThrow(() -> new AnalysisException(context, "Invalid final results."));
                customFinal = doCustomAction(strategy, Actions.customFinal(globalSource, customInitial.orElse(B.EMPTY_TUPLE), Optionals.filter(customUnits)), context, runtime);
                finalResult = finalResult.withCustomResult(customFinal);
                context.setFinalResult(finalResult);
                customSolution = customFinal.flatMap(cs -> CustomSolution.matcher().match(cs, solution.unifier()));
                customSolution.ifPresent(cs -> context.setCustomSolution(cs));
            } finally {
                finalizeTimer.stop();
            }
            if (debugConfig.analysis()) {
                logger.info("Project analysis finalized.");
            }
        }
        // errors
        {
            if (debugConfig.analysis()) {
                logger.info("Processing project messages.");
            }
            Messages.Transient messageBuilder = Messages.Transient.of();
            messageBuilder.addAll(Messages.unsolvedErrors(solution.constraints()));
            messageBuilder.addAll(solution.messages().getAll());
            customSolution.map(CustomSolution::getMessages).map(IMessages::getAll).ifPresent(messageBuilder::addAll);
            IMessages messages = messageBuilder.freeze();
            IRelation3.Transient<String, MessageSeverity, IMessage> messagesByFile = HashTrieRelation3.Transient.of();
            messagesByFile(failures.values(), messagesByFile, context);
            messagesByFile(messages(messages.getAll(), solution.unifier(), context, context.location()), messagesByFile, context);
            // precondition: the messagesByFile should not contain any files that do not have corresponding units
            for (IMultiFileScopeGraphUnit unit : context.units()) {
                final String source = unit.resource();
                final java.util.Set<IMessage> fileMessages = messagesByFile.get(source).stream().map(Map.Entry::getValue).collect(Collectors2.toHashSet());
                if (changed.containsKey(source)) {
                    fileMessages.addAll(ambiguitiesByFile.get(source));
                    final boolean valid = !failures.containsKey(source);
                    final boolean success = valid && messagesByFile.get(source, MessageSeverity.ERROR).isEmpty();
                    final IStrategoTerm analyzedAST = astsByFile.get(source);
                    results.add(unitService.analyzeUnit(changed.get(source), new AnalyzeContrib(valid, success, analyzedAST != null, analyzedAST, fileMessages, -1), context));
                } else {
                    try {
                        final FileObject file = context.location().resolveFile(source);
                        updateResults.add(unitService.analyzeUnitUpdate(file, new AnalyzeUpdateData(fileMessages), context));
                    } catch (IOException ex) {
                        logger.error("Could not resolve {} to update messages", source);
                    }
                }
                messagesByFile.remove(source);
            }
            if (!messagesByFile.keySet().isEmpty()) {
                logger.error("Found messages for unanalyzed files {}", messagesByFile.keySet());
            }
            if (debugConfig.analysis() || debugConfig.files() || debugConfig.resolution()) {
                logger.info("Analyzed {} files: {} errors, {} warnings, {} notes.", n, messages.getErrors().size(), messages.getWarnings().size(), messages.getNotes().size());
            }
        }
    } catch (InterruptedException e) {
        logger.debug("Analysis was interrupted.");
    } finally {
        totalTimer.stop();
    }
    final ConstraintDebugData debugData = new ConstraintDebugData(totalTimer.stop(), collectionTimer.total(), solverTimer.total(), finalizeTimer.total());
    if (debugConfig.analysis()) {
        logger.info("{}", debugData);
    }
    return new SpoofaxAnalyzeResults(results, updateResults, context, debugData);
}

Example 23 with IStrategoTerm

use of org.spoofax.interpreter.terms.IStrategoTerm in project spoofax by metaborg.

the class ConstraintSingleFileAnalyzer method analyzeAll.

@Override
protected ISpoofaxAnalyzeResults analyzeAll(Map<String, ISpoofaxParseUnit> changed, Set<String> removed, ISingleFileScopeGraphContext context, HybridInterpreter runtime, String strategy, IProgress progress, ICancel cancel) throws AnalysisException {
    final NaBL2DebugConfig debugConfig = context.config().debug();
    for (String input : removed) {
        context.removeUnit(input);
    }
    final int n = changed.size();
    progress.setWorkRemaining(n + 1);
    if (debugConfig.analysis() || debugConfig.files()) {
        logger.info("Analyzing {} files in {}.", n, context.location());
    }
    final Collection<ISpoofaxAnalyzeUnit> results = Lists.newArrayList();
    try {
        for (Map.Entry<String, ISpoofaxParseUnit> input : changed.entrySet()) {
            final String source = input.getKey();
            final ISpoofaxParseUnit parseUnit = input.getValue();
            final ITerm ast = strategoTerms.fromStratego(parseUnit.ast());
            if (debugConfig.files()) {
                logger.info("Analyzing {}.", source);
            }
            final ISingleFileScopeGraphUnit unit = context.unit(source);
            unit.clear();
            try {
                // initial
                InitialResult initialResult;
                final Optional<ITerm> customInitial;
                {
                    if (debugConfig.collection()) {
                        logger.info("Collecting initial constraints of {}.", source);
                    }
                    ITerm initialResultTerm = doAction(strategy, Actions.analyzeInitial(source, ast), context, runtime).orElseThrow(() -> new AnalysisException(context, "No initial result."));
                    initialResult = InitialResult.matcher().match(initialResultTerm).orElseThrow(() -> new MetaborgException("Invalid initial results."));
                    customInitial = doCustomAction(strategy, Actions.customInitial(source, ast), context, runtime);
                    initialResult = initialResult.withCustomResult(customInitial);
                    if (debugConfig.collection()) {
                        logger.info("Collected {} initial constraints of {}.", initialResult.getConstraints().size(), source);
                    }
                }
                // unit
                UnitResult unitResult;
                final Optional<ITerm> customUnit;
                {
                    if (debugConfig.collection()) {
                        logger.info("Collecting constraints of {}.", source);
                    }
                    final ITerm unitResultTerm = doAction(strategy, Actions.analyzeUnit(source, ast, initialResult.getArgs()), context, runtime).orElseThrow(() -> new AnalysisException(context, "No unit result."));
                    unitResult = UnitResult.matcher().match(unitResultTerm).orElseThrow(() -> new MetaborgException("Invalid unit results."));
                    final ITerm desugaredAST = unitResult.getAST();
                    customUnit = doCustomAction(strategy, Actions.customUnit(source, desugaredAST, customInitial.orElse(B.EMPTY_TUPLE)), context, runtime);
                    unitResult = unitResult.withCustomResult(customUnit);
                    unit.setUnitResult(unitResult);
                    if (debugConfig.collection()) {
                        logger.info("Collected {} constraints of {}.", unitResult.getConstraints().size(), source);
                    }
                }
                // solve
                ISolution solution;
                {
                    Set<IConstraint> constraints = Sets.union(initialResult.getConstraints(), unitResult.getConstraints());
                    if (debugConfig.resolution()) {
                        logger.info("Solving {} constraints of {}.", constraints.size(), source);
                    }
                    Function1<String, String> fresh = base -> context.unit(source).fresh().fresh(base);
                    final IProgress subprogress = progress.subProgress(1);
                    final SingleFileSolver solver = new SingleFileSolver(context.config().debug(), callExternal(runtime));
                    GraphSolution preSolution = solver.solveGraph(ImmutableBaseSolution.of(initialResult.getConfig(), constraints, PersistentUnifier.Immutable.of()), fresh, cancel, subprogress);
                    preSolution = solver.reportUnsolvedGraphConstraints(preSolution);
                    solution = solver.solve(preSolution, fresh, cancel, subprogress);
                    solution = solver.reportUnsolvedConstraints(solution);
                    if (!solution.flowSpecSolution().controlFlowGraph().isEmpty()) {
                        logger.debug("CFG is not empty: calling FlowSpec dataflow solver");
                        solution = new FixedPoint().entryPoint(solution, getFlowSpecTransferFunctions(context.language()));
                    }
                    unit.setSolution(solution);
                    if (debugConfig.resolution()) {
                        logger.info("Solved constraints of {}.", source);
                    }
                }
                // final
                FinalResult finalResult;
                final Optional<ITerm> customFinal;
                {
                    if (debugConfig.files()) {
                        logger.info("Finalizing analysis of {}.", source);
                    }
                    ITerm finalResultTerm = doAction(strategy, Actions.analyzeFinal(source), context, runtime).orElseThrow(() -> new AnalysisException(context, "No final result."));
                    finalResult = FinalResult.matcher().match(finalResultTerm).orElseThrow(() -> new MetaborgException("Invalid final results."));
                    customFinal = doCustomAction(strategy, Actions.customFinal(source, customInitial.orElse(B.EMPTY_TUPLE), customUnit.map(cu -> Collections.singletonList(cu)).orElse(Collections.emptyList())), context, runtime);
                    finalResult = finalResult.withCustomResult(customFinal);
                    unit.setFinalResult(finalResult);
                    if (debugConfig.files()) {
                        logger.info("Finalized analysis of {}.", source);
                    }
                }
                final IStrategoTerm analyzedAST = strategoTerms.toStratego(unitResult.getAST());
                Optional<CustomSolution> customSolution = customFinal.flatMap(CustomSolution.matcher()::match);
                customSolution.ifPresent(cs -> unit.setCustomSolution(cs));
                // errors
                final boolean success;
                {
                    if (debugConfig.files()) {
                        logger.info("Processing messages of {}.", source);
                    }
                    Messages.Transient messageBuilder = Messages.Transient.of();
                    messageBuilder.addAll(Messages.unsolvedErrors(solution.constraints()));
                    messageBuilder.addAll(solution.messages().getAll());
                    customSolution.map(CustomSolution::getMessages).map(IMessages::getAll).ifPresent(messageBuilder::addAll);
                    IMessages messages = messageBuilder.freeze();
                    success = messages.getErrors().isEmpty();
                    Iterable<IMessage> fileMessages = Iterables.concat(analysisCommon.ambiguityMessages(parseUnit.source(), parseUnit.ast()), messages(messages.getAll(), solution.unifier(), context, context.location()));
                    // result
                    results.add(unitService.analyzeUnit(parseUnit, new AnalyzeContrib(true, success, true, analyzedAST, fileMessages, -1), context));
                    if (debugConfig.analysis() || debugConfig.files()) {
                        logger.info("Analyzed {}: {} errors, {} warnings, {} notes.", source, messages.getErrors().size(), messages.getWarnings().size(), messages.getNotes().size());
                    }
                }
            } catch (MetaborgException | SolverException e) {
                logger.warn("Analysis of " + source + " failed.", e);
                Iterable<IMessage> messages = Iterables2.singleton(MessageFactory.newAnalysisErrorAtTop(parseUnit.source(), "File analysis failed.", e));
                results.add(unitService.analyzeUnit(parseUnit, new AnalyzeContrib(false, false, true, parseUnit.ast(), messages, -1), context));
            }
        }
    } catch (InterruptedException e) {
        logger.debug("Analysis was interrupted.");
    }
    if (debugConfig.analysis()) {
        logger.info("Analyzed {} files.", n);
    }
    return new SpoofaxAnalyzeResults(results, Collections.emptyList(), context);
}

Example 24 with IStrategoTerm

use of org.spoofax.interpreter.terms.IStrategoTerm in project spoofax by metaborg.

the class StrategoAnalyzer method result.

private ISpoofaxAnalyzeUnit result(IStrategoTerm result, ISpoofaxParseUnit input, IContext context, long duration) {
    final IStrategoTerm ast = result.getSubterm(0);
    final FileObject source = input.source();
    final Collection<IMessage> errors = analysisCommon.messages(source, MessageSeverity.ERROR, result.getSubterm(1));
    final Collection<IMessage> warnings = analysisCommon.messages(source, MessageSeverity.WARNING, result.getSubterm(2));
    final Collection<IMessage> notes = analysisCommon.messages(source, MessageSeverity.NOTE, result.getSubterm(3));
    final Collection<IMessage> ambiguities = analysisCommon.ambiguityMessages(source, ast);
    final Collection<IMessage> messages = Lists.newArrayListWithCapacity(errors.size() + warnings.size() + notes.size() + ambiguities.size());
    messages.addAll(errors);
    messages.addAll(warnings);
    messages.addAll(notes);
    messages.addAll(ambiguities);
    return unitService.analyzeUnit(input, new AnalyzeContrib(true, errors.isEmpty(), true, ast, messages, duration), context);
}

Example 25 with IStrategoTerm

use of org.spoofax.interpreter.terms.IStrategoTerm in project spoofax by metaborg.

the class TaskEngineAnalyzer method result.

@Nullable
private ISpoofaxAnalyzeUnit result(IStrategoTerm result, Map<String, ISpoofaxParseUnit> inputsPerSource, IContext context, long duration) {
    final String sourceString = Tools.asJavaString(result.getSubterm(0));
    final FileObject source;
    try {
        source = resourceService.resolve(sourceString);
    } catch (MetaborgRuntimeException e) {
        logger.error("Cannot find original source for {}, skipping result", e, sourceString);
        return null;
    }
    final ISpoofaxParseUnit input = inputsPerSource.get(sourceString);
    if (input == null) {
        logger.error("Cannot find input parse result for {}, skipping result", sourceString);
        return null;
    }
    final IStrategoTerm ast = result.getSubterm(2);
    final Collection<IMessage> errors = analysisCommon.messages(source, MessageSeverity.ERROR, result.getSubterm(3));
    final Collection<IMessage> warnings = analysisCommon.messages(source, MessageSeverity.WARNING, result.getSubterm(4));
    final Collection<IMessage> notes = analysisCommon.messages(source, MessageSeverity.NOTE, result.getSubterm(5));
    final Collection<IMessage> ambiguities = analysisCommon.ambiguityMessages(source, ast);
    final Collection<IMessage> messages = Lists.newArrayListWithCapacity(errors.size() + warnings.size() + notes.size() + ambiguities.size());
    messages.addAll(errors);
    messages.addAll(warnings);
    messages.addAll(notes);
    messages.addAll(ambiguities);
    return unitService.analyzeUnit(input, new AnalyzeContrib(true, errors.isEmpty(), true, ast, messages, duration), context);
}